173 citations · 487 across the 33 of their papers we have counts for
7 papers · 1 filter
Fierce Feedback in an Obscured, Sub-Eddington State of the Seyfert 1.2 Markarian 817
Miranda K. Zak, Jon M. Miller, Ehud Behar +7
Markarian 817 is a bright and variable Seyfert-1.2 active galactic nucleus (AGN). X-ray monitoring of Mrk 817 with the Neil Gehrels Swift Observatory in 2022 revealed that the sour…
The High Energy X-ray Probe (HEX-P): Probing Accretion onto Stellar Mass Black Holes
Riley Connors, John Tomsick, Paul Draghis +20
Accretion is a universal astrophysical process that plays a key role in cosmic history, from the epoch of reionization to galaxy and stellar formation and evolution. Accreting stel…
Systematically Revisiting All NuSTAR Spins of Black Holes in X-Ray Binaries
Paul A. Draghis, Jon M. Miller, Elisa Costantini +4
We extend our recent work on black hole spin in X-ray binary systems to include an analysis of 189 archival NuSTAR observations from 24 sources. Using self-consistent data reductio…
Evidence of a Massive Stellar Disruption in the X-ray Spectrum of ASASSN-14li
J. M. Miller, B. Mockler, E. Ramirez-Ruiz +7
The proximity and duration of the tidal disruption event (TDE) ASASSN-14li led to the discovery of narrow, blue-shifted absorption lines in X-rays and UV. The gas seen in X-ray abs…
An Extreme Black Hole in the Recurrent X-ray Transient XTE J2012+381
Paul A. Draghis, Jon M. Miller, McKinley C. Brumback +3
The black hole candidate XTE J2012+381 underwent an outburst at the end of 2022. We analyzed 105 NICER observations and 2 NuSTAR observations of the source during the outburst. The…
The Spin of a Newborn Black Hole: Swift J1728.9-3613
Paul A. Draghis, Mayura Balakrishnan, Jon M. Miller +7
The origin and distribution of stellar-mass black hole spins are a rare window into the progenitor stars and supernova events that create them. Swift J1728.9-3613 is an X-ray binar…